This study evaluated the in vitro effects of the combination of a carbapenem (imipenem or meropenem) with a quinolone (ciprofloxacin or levofloxacin) using a microbroth dilution chequerboard technique and multidrug-resistant Pseudomonas aeruginosa strains. The ciprofloxacin and meropenem combination was only synergistic against 2 strains (6.2%) and ciprofloxacin and imipenem against 1 strain (3.1%). Levofloxacin and imipenem or meropenem were not synergistic for against any strain. None of the combinations showed an antagonistic effect.
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http://dx.doi.org/10.1016/s0924-8579(02)00192-9 | DOI Listing |
J Glob Antimicrob Resist
January 2025
Department of Medicine, Division of Clinical Infectious Diseases, Showa University School of Medicine, Tokyo, Japan.
Objectives: In Pseudomonas aeruginosa isolates, emerging meropenem resistance beyond imipenem resistance has become a problem. In this study, we aimed to investigate the relationship between the in vivo acquisition of antimicrobial resistance in fluoroquinolone- and carbapenem-resistant P. aeruginosa clinical isolates, the underlying molecular mechanisms, and exposure to antimicrobial agents.
View Article and Find Full Text PDFFront Antibiot
August 2024
The Medical School, University of Jordan, Amman, Jordan.
Objectives: To evaluate the antimicrobial susceptibilities of Gram-positive and Gram-negative isolates from patients in Jordan between 2010 and 2021, through the Antimicrobial Testing Leadership and Surveillance (ATLAS) programme.
Methods: Medical centres in Jordan collected bacterial isolates from hospitalised patients with defined infection sources between 2010 and 2021 (no isolates collected in 2014). Antimicrobial susceptibility was interpreted using CLSI standards.
J Pediatric Infect Dis Soc
January 2025
IHMA, Schaumburg, Illinois, USA.
Objectives: To evaluate the in vitro susceptibility of recent Gram-negative pathogens collected from pediatric patients to imipenem/relebactam (IMI/REL) and comparator agents.
Methods: From 2018 to 2022 254 hospitals in 62 countries collected Enterobacterales or Pseudomonas aeruginosa isolates from patients <18 years old as part of the SMART global surveillance program. Minimum inhibitory concentrations (MIC)s were determined using CLSI broth microdilution and interpreted with 2024 CLSI breakpoints.
Sci Total Environ
January 2025
National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands; Department of Biotechnology, Technical University Delft, Delft, the Netherlands. Electronic address:
Water systems can act as an important reservoir for Pseudomonas aeruginosa, which can pose public health risks during human contact. Carbapenem resistance is one of the most concerning resistances in P. aeruginosa making it a high-priority pathogen according to the World Health Organization (WHO), due to its ability to cause difficult-to-treat infections.
View Article and Find Full Text PDFNagoya J Med Sci
November 2024
Department of Clinical Infectious Diseases, Aichi Medical University, Nagakute, Japan.
() is known to cause intra-abdominal and anaerobic bloodstream infections. However, clinical insights and information on antimicrobial susceptibility in infections are limited. This study aimed to elucidate the clinical characteristics and antimicrobial susceptibility of infections.
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